X = int(input())
rank = -1
if X <= 599:
  rank = 8
elif X <= 799:
  rank = 7
elif X <= 999:
  rank = 6
elif X <= 1199:
  rank = 5
elif X <= 1399:
  rank = 4
elif X <= 1599:
  rank = 3
elif X <= 1799:
  rank = 2
else:
  rank = 1
print(rank) X = int(input()) X int(input()) int input() input rank = -1 rank -1 if X <= 599:
  rank = 8
elif X <= 799:
  rank = 7
elif X <= 999:
  rank = 6
elif X <= 1199:
  rank = 5
elif X <= 1399:
  rank = 4
elif X <= 1599:
  rank = 3
elif X <= 1799:
  rank = 2
else:
  rank = 1 X <= 599 X 599 rank = 8 rank 8 elif X <= 799:
  rank = 7 X <= 799 X 799 rank = 7 rank 7 elif X <= 999:
  rank = 6 X <= 999 X 999 rank = 6 rank 6 elif X <= 1199:
  rank = 5 X <= 1199 X 1199 rank = 5 rank 5 elif X <= 1399:
  rank = 4 X <= 1399 X 1399 rank = 4 rank 4 elif X <= 1599:
  rank = 3 X <= 1599 X 1599 rank = 3 rank 3 elif X <= 1799:
  rank = 2 X <= 1799 X 1799 rank = 2 rank 2 rank = 1 rank 1 print(rank) print rank rank = 8 8 rank rank = 5 5 rank rank = -1 -1 rank rank = 7 7 rank X = int(input()) int(input()) X rank = 4 4 rank rank = 3 3 rank rank = 6 6 rank rank = 1 1 rank rank = 2 2 rank
X = int(input())
rank = -1
if X <= 599:
  rank = 8
elif X <= 799:
  rank = 7
elif X <= 999:
  rank = 6
elif X <= 1199:
  rank = 5
elif X <= 1399:
  rank = 4
elif X <= 1599:
  rank = 3
elif X <= 1799:
  rank = 2
else:
  rank = 1
print(rank)